One of the more common reasons for this is a hole in the condensor. It only takes a pinhole to do it. If you look at the front of the car, everything you see that looks like a radiator is really a combined condensor/radiator. Whole thing needs to be replaced if that is the issue. This is not covered under warrenty, it's wear and tear, like a busted windsheild. I learned all this the hard way.

One of the more common reasons for this is a hole in the condensor. It only takes a pinhole to do it. If you look at the front of the car, everything you see that looks like a radiator is really a combined condensor/radiator. Whole thing needs to be replaced if that is the issue. This is not covered under warrenty, it's wear and tear, like a busted windsheild. I learned all this the hard way.

my a/c isn't working either...i dont hear the clutch kick on. I havent checked the fuse which should probably be my first step but I have a feeling its what your saying.

by any chance do u know the part #? or where I can find it? i think this is my problem...whats the best way of finding out if it needs to be replaced? do i have to fill it and see or hear if there is a leak?

I have to say something...
Both PhilT and bluechipbmw, when you turn on the AC, is air blown out or literally nothing happen? My OB has similar problem and left the car at the dealer. The whole AC system is gone... My problem is that even fan doesn't work...

that was my first impression until someone else told me.....if ur low or dont have any freon than u have a leak. is this true? can freon get consumed after awhile that you do need to get refilled? sorry for the dumb question...but I have no clue about a/c systems